We will use the Pythagorean theorem to calculate this. In the right triangle, diagonal, d, is hypotenuse while sides, s, of the net are sides of the triangle: d² = s² + s² d² = 2s²
d = 6 ft
6² = 2s² 36 = 2s² s² = 36/2 s² = 18 s = √18 s = √(9 * 2) s = √9 * √2 s = 3√2 ft
